Miles between St Louis, MO and Mt Prospect, IL

There are
303 mi
from St Louis, MO to Mt Prospect, IL

That's the driving distance. It would take 5 hours 45 mins to go from St Louis, Missouri to Mt Prospect, Illinois.

The flight distance (direct flight from St Louis, MO to Mt Prospect, IL) is 265.80 mi.

303 mi = 488.08 kms